Imagine that a reactor converts all given mass into energy and that it operates at a power level of 10⁹ watt. The mass of the fuel consumed per hour in the reactor will be (velocity of light, c = 3 x 10⁸ m/s).

(a) 0.96 gm

(b) 0.8 gm

(c) 4 x 10^-2 gm

(d) 6.6 x 10^-5 gm